Classloading done right. AS 7 provides an early preview of Java modularity for true application isolation. It hides server implementation classes from the application and only loads the classes your application needs. Modules, packaged as collections of classes, are peers that remain isolated unless explicitly defined as a dependency of another module.

Lightweight and scalable due to aggressive menory management.

User-focused, centralized administration. Manage a multi-server topology (domain mode) or an independent, development server (standalone mode) from a single control point.

Test applications with ease. AS 7 is integrated with Arquillian. Arquillian, a component model for integration tests that execute inside the real runtime environment, enables you to write tests for just about any use case your application encounters.

New in Fedora 17

Java 7 runtime (JRE) and development tools (JDK) provided by OpenJDK 1.7.0, the open-source reference implementation of the Java Platform